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1. 发明授权

KR101225122B1 저 변형량에서의 나노 결정립 티타늄 합금의 제조 방법 有权
标题翻译：无严重变形的纳米晶钛合金的制造方法
公开(公告)号：KR101225122B1
公开(公告)日：2013-01-22
申请号：KR1020090083931
申请日：2009-09-07
申请人： 포항공과대학교 산학협력단
发明人： 박찬희 , 이종수 , 박성혁 , 전영수
IPC分类号： C22C14/00
CPC分类号： C22C14/00
摘要： 본 발명은 저 변형량에서 나노 결정립을 가지는 티타늄 합금을 제조하고, 보다 우수한 강도를 가지도록 하는 것이다.
초기 미세조직을 미세한 층 구조로 이루어진 마르텐사이트로 유도한 후 변형량, 변형율속도, 변형온도 등이 미세조직 변화에 미치는 영향을 관찰하여 공정 변수를 최적화시켜 저 변형량에서 나노 결정립 티타늄 합금을 제조하는 것을 특징으로 한다.
티타늄, 저변형량, 나노 결정립

2. 发明授权

KR101280502B1 냉간 압조성이 우수한 고강도 고망간 강선재와 그 제조방법 및 상기 강선재를 이용한 볼트의 제조방법 有权
标题翻译：具有优良冷头质量的高强度和高锰钢丝绳及其制造方法以及使用其制造螺栓的方法
公开(公告)号：KR101280502B1
公开(公告)日：2013-07-01
申请号：KR1020110022061
申请日：2011-03-11
申请人： 포항공과대학교 산학협력단
发明人： 이종수 , 전영수 , 박성혁 , 박경태 , 이유환 , 이영국 , 박찬희
IPC分类号： C21D8/06 , B21B1/16 , B21C1/00 , C22C38/04
摘要： 본 발명은 냉간 압조성이 우수하여, 볼트 제조시 구상화 열처리 및 퀀칭-템퍼링 처리가 필요치 않은 고강도 고망간 강선재와 이를 제조하는 방법 및 상기 강선재를 이용한 볼트의 제조방법을 제공한다.
본 발명은 망간(Mn) 12~25중량%를 포함하는 강을 1100~1250℃로 가열하는 단계;
상기 가열된 강을 700~1100℃에서 열간 압연하는 단계; 및
상기 열간 압연된 강을 200℃이하의 온도로 냉각하고, 냉간 공형 압연 또는 인발하여 강선재를 제조하는 단계를 포함하는 냉간 압조성이 우수한 고강도 고망간 강선재의 제조방법과 이를 통해 제조된 강선재 및 이를 이용한 볼트의 제조방법을 제공한다.

3. 发明公开

KR1020090121934A 초소성 성형용 티타늄 합금의 제조 방법 无效
标题翻译：钛合金超塑成型的制造方法
公开(公告)号：KR1020090121934A
公开(公告)日：2009-11-26
申请号：KR1020080048101
申请日：2008-05-23
申请人： 포항공과대학교 산학협력단
发明人： 고영건 , 신동혁 , 박찬희 , 이종수
IPC分类号： C22F1/18 , C22F1/16
CPC分类号： C22F1/183 , B21B3/00 , C22C14/00
摘要： PURPOSE: A manufacturing method of titanium alloy for super-plastic forming is provided to enhance the super plasticity characteristic of the titanium alloy for super-plastic forming by using titanium alloy including aluminium(Al) and vanadium(V). CONSTITUTION: The Ti alloy is prepared(ST10). The Ti alloy is rolled at the temperature of 775°C~875°C with the amount of deformation more than 0.9(ST20). The Ti alloy is rolled in the deformation rate of 0.0007/sec~0.13/sec. The Ti alloy is rolled at the temperature of 775°C~825°C and in the deformation rate of 0.07/sec~0.13/sec and the mount of 1.4 or greater. The Ti alloy is rolled at the temperature of 775°C~825°C and in the deformation rate of 0.007/sec~0.013/sec and the mount of 1.0 or greater. The Ti alloy is rolled at the temperature of 775°C~825°C and in the deformation rate of 0.0007/sec~0.0013/sec and the mount of 1.0 or greater. The Ti alloy is rolled at the temperature of 825°C~875°C and in the deformation rate of 0.07/sec~0.13/sec and the mount of 1.8 or greater. The Ti alloy is rolled at the temperature of 825°C~875°C and in the deformation rate of 0.007/sec~0.013/sec and the mount of 1.8 or greater. The Ti alloy is rolled at the temperature of 825°C~875°C and in the deformation rate of 0.0007/sec~0.0013/sec and the mount of 1.8 or greater. The Ti alloy includes aluminium and vanadium.
摘要翻译：目的：提供一种用于超塑性成型的钛合金的制造方法，以通过使用包括铝（Al）和钒（V）的钛合金来增强用于超塑性成型的钛合金的超塑性特性。构成：制备Ti合金（ST10）。 Ti合金在775℃〜875℃的温度下轧制，变形量大于0.9（ST20）。 Ti合金以0.0007 /秒〜0.13 /秒的变形率轧制。 Ti合金在775℃〜825℃的温度下以0.07 /秒〜0.13 /秒的变形速度轧制，并且安装在1.4以上。 Ti合金在775℃〜825℃的温度下以0.007 /秒〜0.013 /秒的变形率进行轧制，其载荷为1.0以上。 Ti合金在775℃〜825℃的温度下以0.0007 /秒〜0.0013 /秒的变形率进行轧制，其载荷为1.0以上。 Ti合金在825℃〜875℃的温度下以0.07 /秒〜0.13 /秒的变形率进行轧制，其载荷为1.8以上。 Ti合金在825℃〜875℃的温度下以0.007 /秒〜0.013 /秒的变形率进行轧制，其载荷为1.8以上。 Ti合金在825℃〜875℃的温度下以0.0007 /秒〜0.0013 /秒的变形率进行轧制，其载荷为1.8以上。 Ti合金包括铝和钒。

4. 发明公开

KR1020110026153A 저 변형량에서의 나노 결정립 티타늄 합금의 제조 방법 有权
标题翻译：用于生产没有严重变形的纳米晶体钛合金的方法
公开(公告)号：KR1020110026153A
公开(公告)日：2011-03-15
申请号：KR1020090083931
申请日：2009-09-07
申请人： 포항공과대학교 산학협력단
发明人： 박찬희 , 이종수 , 박성혁 , 전영수
IPC分类号： C22C14/00
CPC分类号： C22C14/00
摘要： PURPOSE: A method for producing nano-crystalline titanium alloy at low strain rate is provided to increase the strength, yield strength and tensile strength of nano-crystalline titanium alloy without the decrease of ductility. CONSTITUTION: A method for producing nano-crystalline titanium alloy at low strain is as follows. Martensite structure is rolled in deformation temperature of 575~625°C, strain velocity of 0.07~0.13, and strain rate of 0.9~1.8. The Martensite structure is segmented into fine coaxial structures.
摘要翻译：目的：提供一种低应变率的纳米晶钛合金的制造方法，以增加纳米晶钛合金的强度，屈服强度和拉伸强度，而不会延展性。构成：低应变下制备纳米晶钛合金的方法如下。马氏体组织的变形温度为575〜625℃，应变速度为0.07〜0.13，应变速率为0.9〜1.8。马氏体结构分为精细同轴结构。

5. 发明公开

KR1020120104021A 냉간 압조성이 우수한 고강도 고망간 강선재와 그 제조방법 및 상기 강선재를 이용한 볼트의 제조방법 有权
标题翻译：具有优良冷头质量的高强度和高锰钢丝绳及其制造方法以及使用其制造螺栓的方法
公开(公告)号：KR1020120104021A
公开(公告)日：2012-09-20
申请号：KR1020110022061
申请日：2011-03-11
申请人： 포항공과대학교 산학협력단
发明人： 이종수 , 전영수 , 박성혁 , 박경태 , 이유환 , 이영국 , 박찬희
IPC分类号： C21D8/06 , B21B1/16 , B21C1/00 , C22C38/04
CPC分类号： C21D8/065 , C21D6/005 , C21D9/0093 , C21D9/54 , C22C38/04 , C22C38/06
摘要： PURPOSE: A high-strength and high-Mn steel wire rod with excellent cold forging property, a manufacturing method thereof, and a bolt manufacturing method using the same are provided to reduce the weight of parts by excluding a heat treatment process and utilizing the steel wire rod for the parts. CONSTITUTION: A method for manufacturing a high-strength and high-Mn steel wire rod with excellent cold forging property comprises the steps of: heating steel including Mn of 12-25wt.% to 1100-1250°C, hot rolling the heated steel at 700-1100°C, cooling the hot rolled steel below 200°C, and cold caliber-rolling or drawing the steel into a steel wire rod. [Reference numerals] (AA) Temperature(°C); (BB) 1200°C heating; (CC) 1100°C hot rolling; (DD) Cold caliber-rolling or drawing; (EE) Time(t)
摘要翻译：目的：提供一种具有优异的冷锻性能的高强度高Mn钢线材，其制造方法和使用该高强度Mn的钢丝绳螺栓制造方法，通过排除热处理工艺并利用钢来减少部件的重量线材为零件。构成：制造具有优异的冷锻性能的高强度高Mn钢丝线的方法包括以下步骤：将包括Mn在12-25wt。％的钢加热至1100-1250℃，将加热的钢热轧 700-1100℃，将热轧钢冷却至200℃以下，冷口径轧制或将钢拉成钢丝。（标号）（AA）温度（℃）; （BB）1200°C加热; （CC）1100°C热轧; （DD）冷口径轧制或拉丝; （EE）时间（t）

6. 发明授权

KR101158479B1 마그네슘 합금 가공재의 피로강도 향상 방법 有权
标题翻译：改善锻造镁合金疲劳强度的方法
公开(公告)号：KR101158479B1
公开(公告)日：2012-06-20
申请号：KR1020090083939
申请日：2009-09-07
申请人： 포항공과대학교 산학협력단
发明人： 박성혁 , 홍성구 , 박찬희 , 이종수
IPC分类号： C21D7/00
摘要： PURPOSE: A method for increasing fatigue strength of magnesium alloy processing materials is provided to prevent the reduction of strength by removing twin crystal in a material by applying pre-tension of 1~10% to an magnesium alloy extruding or rolling material. CONSTITUTION: A method for increasing fatigue strength of magnesium alloy processing materials is as follows. A magnesium alloy processing material is pre-tensioned. Twin crystal of 10~12 existing in the magnesium alloy processing material is removed through pre-tensile stress. The pre-tensile stress is performed in a strain rate of 1~10%.

7. 发明授权

KR101158477B1 고강도 및 고연성 티타늄 합금의 제조방법 有权
标题翻译：用于生产高强度和高密度钛合金的方法
公开(公告)号：KR101158477B1
公开(公告)日：2012-06-20
申请号：KR1020090130762
申请日：2009-12-24
申请人： 포항공과대학교 산학협력단
发明人： 박찬희 , 김선미 , 이유환 , 이종수
IPC分类号： B21B3/00 , C22C1/00 , C22C14/00
CPC分类号： C22C14/00 , C22F1/04
摘要： Disclosed is a method of manufacturing a high strength and high ductility titanium alloy. The method comprises: providing a titanium alloy having a martensite structure; and partially dynamically spheroidizing a microstructure through a thermal and mechanical treatment of the titanium alloy having the martensite structure. According to the present invention, a titanium alloy having a partially dynamically spheroidized microstructure can be manufactured to have excellent yield strength (YS) and uniform elongation (U.EL). A microstructure having lamellar structures is controlled to a microstructure where fine equiaxed structures and lamellar structures are simultaneously present by regulating a rolling direction and a deformation amount. According to the present invention, a titanium alloy can be manufactured to have an improved product (YS×U.EL) of yield strength and uniform elongation as compared with conventional heat treatment.

8. 发明公开

KR1020110073950A 고강도 및 고연성 티타늄 합금의 제조방법 有权
标题翻译：用于生产高强度和高密度钛合金的方法
公开(公告)号：KR1020110073950A
公开(公告)日：2011-06-30
申请号：KR1020090130762
申请日：2009-12-24
申请人： 포항공과대학교 산학협력단
发明人： 박찬희 , 김선미 , 이유환 , 이종수
IPC分类号： B21B3/00 , C22C1/00 , C22C14/00
CPC分类号： C22C14/00 , C22F1/04
摘要： PURPOSE: A method for producing high strength and high ductility titanium alloy is intended to provide titanium alloy with enhanced yield strength and uniform elongation. CONSTITUTION: A method for producing high strength and high ductility titanium alloy comprises next steps A martensite micro structure of titanium alloy is rolled in one direction and is controlled as a dynamically spheroidizing micro structure. The rolling is performed in conditions of a strain temperature of 775 ~ 875°C, strain speed of 0.07 ~ 0.13s-1 and deformation of -0.2 ~ -1.6. The dynamically spheroidizing micro structure is formed in a lamination structure, which does not form an equal axis structure and colony.
摘要翻译：目的：制造高强度，高延展性钛合金的方法旨在提供具有增强的屈服强度和均匀伸长率的钛合金。构成：制造高强度，高延展性钛合金的方法包括以下步骤：将钛合金的马氏体微结构在一个方向上滚动并被控制为动态球化微结构。轧制在应变温度为775〜875℃，应变速度为0.07〜0.13s -1，变形为-0.2〜-1.6的条件下进行。动态球化微结构形成层叠结构，其不形成等轴结构和集落。

9. 发明公开

KR1020110026160A 마그네슘 합금 가공재의 피로강도 향상 방법 有权
标题翻译：改善镁合金疲劳强度的方法
公开(公告)号：KR1020110026160A
公开(公告)日：2011-03-15
申请号：KR1020090083939
申请日：2009-09-07
申请人： 포항공과대학교 산학협력단
发明人： 박성혁 , 홍성구 , 박찬희 , 이종수
IPC分类号： C21D7/00
CPC分类号： C21D7/00 , B21B3/00
摘要： PURPOSE: A method for increasing fatigue strength of magnesium alloy processing materials is provided to prevent the reduction of strength by removing twin crystal in a material by applying pre-tension of 1~10% to an magnesium alloy extruding or rolling material. CONSTITUTION: A method for increasing fatigue strength of magnesium alloy processing materials is as follows. A magnesium alloy processing material is pre-tensioned. Twin crystal of 10~12 existing in the magnesium alloy processing material is removed through pre-tensile stress. The pre-tensile stress is performed in a strain rate of 1~10%.
摘要翻译：目的：提供一种提高镁合金加工材料的疲劳强度的方法，以通过对镁合金挤压或轧制材料施加1〜10％的预紧力来除去材料中的双晶来降低强度。构成：提高镁合金加工材料疲劳强度的方法如下。镁合金加工材料预张紧。通过预拉伸应力去除镁合金加工材料中存在的10〜12的双晶。预拉伸应力在1〜10％的应变速率下进行。

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